Oil-control transmission.



A. l. WILLIAMS.

OIL CONTROL TRANSMISSION. APPLICATION FILED FEB-19. I917.

1,693,129, Patented J 11110 11,1918.

2 $HEET$SHEET 1- 1 ATTORNEY A. I. WILLIAMS. 0H. CONTROL TRANSMSSION. APPLICATION FILED FEB. 19. 1911 Patented June 11, 1918.

2 SHEETS-SHEET 2- A TTORNE Y lie in the same diametrical in this case or there may ALVA J. WILLIAMS, 0F SEATTLE, WASHINGT are.

ON, ASSIGNOR TO WILLIAMS OIL CONTROL OIL-CONTROL TRANSMISSION.

To all whom it may concern:

Be it known that I, ALVA J. WILLIAMS, a

' citizen of the United States, residing at Seattle, in the county of Kingand State of Washington, have invented certain new and useful Improvements in Oil-Control Transmissions, of which the following is a specification.

y invention relates to oil control transmissions and has for its principal object to provide an improved and novel type of oil control transmission for motor vehicles and .My device is designed to providea smooth operating and variable transmission in which any number of different speed and power combinations may be used.

Other objects will appear as my invention is more fully explained in the followingspeeification illustrated in the accompanying ed claims.

In the drawings Figure 1 is a plan view of my device with parts broken away. Fig. 2 is a sectional end elevation of same with parts broken away. Fig. 3 is an enlarged central cross s non of one of the oil pumps of my device. Fig. 4 is a plan view of same taken along line ww of Fig. 3.

. Referring more particularly to the draw ings numeral 1 indicates a driving shaft and-numeral 2 a driven shaft both of which have their axis in the same common line and their ends adjacent. A housing 3 is positively secured to the shaft 2 and also pro. vides bearings for shaft 1. A series of oil pumps A are mounted radially in casing 3. The pumps A will he more fully described in detail later. It will he understood that there may be one set of pumps all of which plane as shown be several series of such pumps, each series being arranged in its own plane. F or each series of pumps 4 there is an eccentric 4: secured to shaft 1 and Specification of Letters Patent;

Application filed February 19; 1917.

'valve drawing and pointed out in the appendthe direction of rotation of the shaft 1.

securely locked in a plungers. When the Patented June '11, 1918. Serial no. 149,647. I

an eccentric strap 5 which is revolubly mounted upon thesaid eccentric and which is connected to plunger 6 of each pump A by means of a pin 7. All of the pumps are similar in construction and operation and include an outer cylinder 8 which passes through an opening in casing 3 and is trunnloned 1n bearmgs 9 which are secured-to the outside of said casing. The plungers 6 previously referred to are slidably mounted within cylinder 8 and are provided with'the usual piston rings 10 which maintain the plungers 6 in oil tight relation to the cylinder. It will be noted that the plungers 6 are moved in thecylinders 8 by means of and are connected to the eccentric ring 5. Each cylinder is provided with two valves at its outer end. I Both of these valves are ball valves and will be designated as intake valves 11 and'outlet valves 12. Valves 11 and 12 are similar except that they are reversed. The passages leading to valves 11 and 12pass centrally through the trunnioned portion of cylinders 8 and are separated by means of a partition 13. Valves 11 and 12 are normally kept closed by means of springs 14. All of the cylinders are connected in a continuous chain by means of pipes 15 each of which connects an outlet passage on one cylinder to the inlet valve passage on the adjacent cylinder in completely closed that all flow of oil is stopped and the cylinders are therefore all fixed position as the entire system of cylinders and pipes is completely filled with oil at all times. In operation when one of the plunger-s 6 is drawn away from the valves oil flows into the cyl mders past thevalve 11 and whenthe plungers 6 move toward the valves on the return stroke the impounded oil is forced out past the valve 12. The taking in of oil is successively carried on from one cylinder to the next as the eccentric 4 movesthe various valve 16 is open the is therefore apparent driven shaft 2 are a part of casing is not set in motion by the drive shaft 1 and when the valve 16 is entirely closed both the shafts 1 and 2 rotate in unison. It will be apparent that when the valve 16 is partially closed there will be some slip between the shafts 1 and 2 or in other words, the shaft 2 will only revolve partially as rapidly as the drive shaft 1. It wherein my device constitutes a transmission with many speed ratios. I provide means for opening an closing the valve 16- from the'shaft 1. Said means includes a sliding tapered sleeve 17 mounted upon shaft 1 and operated by means of a fork lever 18. A valve rod 19 is pivotally connected to the valve handle 20 and is slidably mounted in bearings21 which 3. A spring 22 normally holds the valve handle in a predetermined position and also holds a roller 23 on the lower end of stem 19 in engagement with the tapered sleeve 17. When it is nec' essary to change the position of the valve 16 it is only necessary to slide the sleeve 17 toward the casing 3 in order to raise the rod 19 thereby operating the valve handle 20.

While I have shown a particular form of embodiment of my'invention, 1 am aware that many minor changes therein will readily suggest themselves to others skilled in'the art without departing from the spirit and scope of the invention, and I therefore desire to avoid being limited to the exact form shown and described.

Having described my invention, what 1 claim as new and desire to protect by Letters Patent, is-

1.- In an oil control transmission, the combination of a drive shaft, a driven shaft, a casing secured to the driven shaft and revolubly mounted upon the drive shaft, a plurality of plunger oil pumping means passing radially through and trunnioned externally to said casing, and an eccentric mounted upon the drive shaft, an eccentric strap revolubly mounted upon said eccentric and pivotally connected to each of the said plungers, an endless pipe system connecting all of said pumping means said pipe system. including alternate individual pipes joining two adjacent pumping means on one side through the trunnions thereof, the pipe system being filled with an operating fluid, ant means for regulating the flow of operating fluid in said pipe, said means including a sliding tapered sleeve mounted upon the drive shaft, a valve in said'pipe system,a valve rod slidably mounted externally said. casing and connected at one end to the han dle of the said valve and cooperating with so the said sleeve, whereby the valve maybe closed or opened by moving said sleeve. j

A 2. In an oil control transmission the com bination of a drive shaft, a driven shaft, a casing secured to the revolubly mounted upon the drive shaft, radial openings in the said casing, a plurality of plunger oil pumping means, each of said pumping means including a cylinder which passes through one of the said openings in 1 0' the casing and which is trunnioned at its outer end and externally to the said casing,

a plunger slidably mounted within the said cylinder, an inlet valve in the outer end of the said cylinder, a similar outlet valve simi- 7 larly located, pipes external the said casing and connected at one end through the trunnion of the cylinder with the outlet passage of one cylinder and with the inlet passage of the adjacent cylinder, whereby an oper- 30 ating fluid is admitted to the cylinder through one of the pipes and discharged to the adjacent cylinder through the other pipe thus forming an endless pipe system between the said cylinders, and a valve in the 5 said system, whereby the flow of oil through the system is controlled.

In testimony whereof I afiiX my signature in the presence of two witnesses.

\ ALVA J. WILLIAMS.

driven shaft and 5, 

